/* ============================================================
 * Proof Room — interactive diagnostic, "Editorial Signal" skin.
 * Uses studio.css tokens. Premium dark instrument panel with the
 * per-persona accent, italic-serif headings, grain-consistent.
 * ============================================================ */

.pr { position: relative; border: 1px solid var(--line-2); border-radius: var(--radius); background: linear-gradient(180deg, var(--panel-2), var(--panel)); box-shadow: var(--shadow); overflow: hidden; }
.pr * { box-sizing: border-box; }

/* Header */
.pr-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 18px; padding: 18px clamp(18px, 2.4vw, 26px); border-bottom: 1px solid var(--line); background: radial-gradient(120% 200% at 0% 0%, var(--accent-soft), transparent 60%); }
.pr-head__title { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 1.02rem; letter-spacing: -0.01em; }
.pr-head__title .dot { width: 8px; height: 8px; border-radius: 999px; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.pr-head__meta { color: var(--muted); font: 500 0.68rem/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; }
.pr-progress { width: 100%; height: 2px; background: var(--line); }
.pr-progress__bar { height: 100%; width: 0; background: var(--accent); box-shadow: 0 0 12px var(--accent-glow); transition: width 340ms ease; }

/* Two-pane body */
.pr-body { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr); }
.pr-flow { padding: clamp(22px, 2.6vw, 32px); border-right: 1px solid var(--line); min-height: 372px; display: flex; flex-direction: column; }
.pr-art { padding: clamp(22px, 2.6vw, 32px); background: rgba(255,255,255,0.015); display: flex; flex-direction: column; }

/* Steps */
.pr-q__kicker { color: var(--accent-ink); font: 500 0.68rem/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; }
.pr-q__prompt { margin-top: 14px; font-family: var(--serif); font-weight: 400; font-size: clamp(1.4rem, 2.2vw, 1.75rem); line-height: 1.15; letter-spacing: -0.005em; }
.pr-q__hint { margin-top: 9px; color: var(--muted); font-size: 0.9rem; }

.pr-options { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.pr-chip { display: inline-flex; align-items: center; gap: 8px; padding: 11px 15px; border: 1px solid var(--line-2); border-radius: var(--radius-xs); background: rgba(255,255,255,0.02); color: var(--soft); font-size: 0.93rem; font-weight: 500; cursor: pointer; transition: border-color 150ms ease, background 150ms ease, color 150ms ease, transform 120ms ease; }
.pr-chip:hover { border-color: var(--line-3); transform: translateY(-1px); color: var(--ink); }
.pr-chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--on-accent); box-shadow: 0 6px 18px var(--accent-glow); }
.pr-chip__tick { width: 15px; height: 15px; display: none; }
.pr-chip[aria-pressed="true"] .pr-chip__tick { display: inline-block; }

.pr-text { margin-top: 20px; display: grid; gap: 10px; }
.pr-text textarea, .pr-text input[type="text"] { width: 100%; min-height: 84px; padding: 12px 14px; border: 1px solid var(--line-2); border-radius: var(--radius-xs); background: rgba(255,255,255,0.02); color: var(--ink); font: inherit; font-size: 0.95rem; line-height: 1.5; resize: vertical; }
.pr-text input[type="text"] { min-height: 46px; }
.pr-text textarea:focus, .pr-text input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.pr-nav { display: flex; align-items: center; gap: 12px; margin-top: auto; padding-top: 24px; }
.pr-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: var(--radius-sm); background: var(--accent); color: var(--on-accent); font-weight: 600; font-size: 0.95rem; cursor: pointer; box-shadow: 0 0 0 1px var(--accent-line), 0 8px 20px var(--accent-glow); transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease; }
.pr-btn:hover { transform: translateY(-2px); background: var(--accent-2); }
.pr-btn[disabled] { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }
.pr-btn--ghost { background: rgba(255,255,255,0.03); border-color: var(--line-2); color: var(--ink); box-shadow: none; }
.pr-btn--ghost:hover { background: rgba(255,255,255,0.07); border-color: var(--line-3); }
.pr-btn--wa { background: #1fa855; color: #fff; box-shadow: 0 8px 20px rgba(31,168,85,0.28); }
.pr-back { background: none; border: 0; color: var(--muted); font: inherit; font-size: 0.88rem; cursor: pointer; padding: 8px; }
.pr-back:hover { color: var(--ink); }
.pr-back[hidden] { display: none; }

/* Artifact pane */
.pr-art__label { color: var(--accent-ink); font: 500 0.68rem/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; }
.pr-art__title { margin-top: 8px; font-size: 1.06rem; font-weight: 600; letter-spacing: -0.01em; }

.pr-gauge { display: flex; align-items: center; gap: 18px; margin-top: 22px; }
.pr-gauge__ring { position: relative; width: 116px; height: 116px; flex: 0 0 auto; }
.pr-gauge__ring svg { transform: rotate(-90deg); filter: drop-shadow(0 0 6px var(--accent-glow)); }
.pr-gauge__track { fill: none; stroke: var(--line-2); stroke-width: 9; }
.pr-gauge__val { fill: none; stroke: var(--accent); stroke-width: 9; stroke-linecap: round; transition: stroke-dashoffset 800ms cubic-bezier(.2,.7,.2,1), stroke 400ms ease; }
.pr-gauge__num { position: absolute; inset: 0; display: grid; place-items: center; }
.pr-gauge__num b { font-family: var(--serif); font-weight: 400; font-size: 2.1rem; letter-spacing: -0.01em; }
.pr-gauge__num span { font-size: 0.64rem; color: var(--muted); font-family: var(--mono); letter-spacing: 0.1em; }
.pr-tier { display: inline-flex; align-items: center; gap: 7px; padding: 5px 11px; border-radius: 999px; font: 500 0.73rem/1 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; background: rgba(255,255,255,0.03); border: 1px solid var(--line-2); }
.pr-tier .dot { width: 7px; height: 7px; border-radius: 999px; background: var(--accent); }
.pr-tier[data-tone="low"] { color: #f0876f; } .pr-tier[data-tone="low"] .dot { background: #f0876f; }
.pr-tier[data-tone="mid"] { color: #e0b25a; } .pr-tier[data-tone="mid"] .dot { background: #e0b25a; }
.pr-tier[data-tone="high"] { color: var(--accent-ink); } .pr-tier[data-tone="high"] .dot { background: var(--accent); }
.pr-gauge__blurb { margin-top: 10px; color: var(--muted); font-size: 0.88rem; }

/* Meters */
.pr-meters { margin-top: 24px; display: grid; gap: 14px; }
.pr-meter { display: grid; grid-template-columns: 1fr auto; gap: 6px 10px; align-items: center; }
.pr-meter__label { font-size: 0.84rem; font-weight: 500; color: var(--soft); }
.pr-meter__pct { font: 500 0.72rem/1 var(--mono); color: var(--muted); }
.pr-meter__track { grid-column: 1 / -1; height: 5px; border-radius: 999px; background: rgba(255,255,255,0.06); overflow: hidden; }
.pr-meter__fill { height: 100%; border-radius: 999px; width: 0; background: var(--accent); box-shadow: 0 0 10px var(--accent-glow); transition: width 700ms cubic-bezier(.2,.7,.2,1); }
.pr-meter[data-state="weak"] .pr-meter__fill { background: #d8654c; box-shadow: none; }
.pr-meter[data-state="ok"] .pr-meter__fill { background: #d2a04a; box-shadow: none; }

/* Live readout */
.pr-readout { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); display: grid; gap: 9px; }
.pr-readout__label { color: var(--faint); font: 500 0.64rem/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; }
.pr-note { display: flex; align-items: flex-start; gap: 9px; font-size: 0.86rem; color: var(--soft); animation: prFade 400ms ease; }
.pr-note__pill { flex: 0 0 auto; margin-top: 1px; padding: 2px 7px; border-radius: 4px; font: 600 0.62rem/1.5 var(--mono); letter-spacing: 0.06em; border: 1px solid currentColor; }
.pr-note__pill[data-tone="safe"] { color: var(--accent-ink); }
.pr-note__pill[data-tone="review"] { color: #e0b25a; }
.pr-note__pill[data-tone="block"] { color: #f0876f; }
.pr-note__pill[data-tone="info"] { color: var(--muted); }
.pr-empty { color: var(--muted); font-size: 0.88rem; }
@keyframes prFade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* Map artifact */
.pr-map { margin-top: 22px; position: relative; aspect-ratio: 1 / 0.82; border: 1px solid var(--line-2); border-radius: var(--radius-xs); background: linear-gradient(var(--line), var(--line)) center / 100% 1px no-repeat, linear-gradient(var(--line), var(--line)) center / 1px 100% no-repeat, rgba(255,255,255,0.015); }
.pr-map__q { position: absolute; font: 500 0.62rem/1 var(--mono); letter-spacing: 0.05em; color: var(--muted); }
.pr-map__q.tl { top: 8px; left: 10px; } .pr-map__q.tr { top: 8px; right: 10px; color: var(--accent-ink); }
.pr-map__q.bl { bottom: 8px; left: 10px; } .pr-map__q.br { bottom: 8px; right: 10px; }
.pr-map__ax { position: absolute; font: 500 0.62rem/1 var(--mono); letter-spacing: 0.05em; color: var(--faint); }
.pr-map__ax.x { bottom: -18px; left: 50%; transform: translateX(-50%); }
.pr-map__ax.y { top: 50%; left: -8px; transform: translate(-100%, -50%) rotate(-90deg); }
.pr-dot { position: absolute; width: 16px; height: 16px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px var(--accent-soft), 0 0 16px var(--accent-glow); transform: translate(-50%, 50%); transition: left 700ms ease, bottom 700ms ease; }
.pr-dot::after { content: attr(data-label); position: absolute; left: 50%; bottom: 150%; transform: translateX(-50%); white-space: nowrap; font: 500 0.7rem/1 var(--sans); color: var(--ink); background: var(--panel-2); border: 1px solid var(--line-2); padding: 3px 8px; border-radius: 999px; }

/* Result + unlock */
.pr-result { padding: clamp(24px, 3vw, 36px); border-top: 1px solid var(--line); }
.pr-result[hidden] { display: none; }
.pr-result h3 { font-family: var(--serif); font-weight: 400; }
.pr-result h3 em { font-style: italic; color: var(--accent-ink); }
.pr-gaps { margin: 18px 0 0; padding: 0; list-style: none; display: grid; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.pr-gaps li { position: relative; padding: 14px 16px 14px 42px; border-bottom: 1px solid var(--line); background: var(--panel); font-size: 0.93rem; color: var(--soft); }
.pr-gaps li:last-child { border-bottom: 0; }
.pr-gaps li::before { content: "→"; position: absolute; left: 16px; top: 13px; color: var(--accent-ink); font-weight: 600; }
.pr-locked { position: relative; margin-top: 14px; }
.pr-locked__veil { filter: blur(6px); opacity: 0.45; pointer-events: none; user-select: none; }
.pr-unlock { margin-top: 22px; padding: clamp(20px, 2.4vw, 26px); border: 1px solid var(--accent-line); border-radius: var(--radius); background: radial-gradient(120% 160% at 0% 0%, var(--accent-soft), transparent 60%), var(--panel-2); }
.pr-unlock h4 { font-size: 1.12rem; font-weight: 600; }
.pr-unlock p { margin-top: 8px; color: var(--soft); font-size: 0.92rem; }
.pr-unlock__bullets { margin: 12px 0 0; padding-left: 18px; color: var(--soft); font-size: 0.9rem; display: grid; gap: 4px; }
.pr-form { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; }
.pr-form input[type="email"] { flex: 1 1 220px; min-height: 46px; padding: 12px 14px; border: 1px solid var(--line-2); border-radius: var(--radius-xs); background: rgba(255,255,255,0.03); color: var(--ink); font: inherit; }
.pr-form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.pr-fineprint { width: 100%; color: var(--muted); font-size: 0.8rem; margin-top: 2px; }
.pr-honey { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.pr-status { margin-top: 10px; min-height: 18px; font-size: 0.88rem; font-weight: 600; }
.pr-status.is-error { color: var(--err); } .pr-status.is-ok { color: var(--ok); }

.pr-done { margin-top: 18px; padding: clamp(20px, 2.4vw, 26px); border: 1px solid var(--accent-line); border-radius: var(--radius); background: radial-gradient(120% 160% at 0% 0%, var(--accent-soft), transparent 60%), var(--panel-2); }
.pr-done[hidden] { display: none; }
.pr-done h4 { font-family: var(--serif); font-weight: 400; font-size: 1.34rem; }
.pr-done p { margin-top: 8px; color: var(--soft); font-size: 0.93rem; }
.pr-done__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

.pr-fastpath { margin-top: 16px; color: var(--muted); font-size: 0.88rem; text-align: center; }
.pr-fastpath a { color: var(--accent-ink); font-weight: 600; }
.pr-fastpath a:hover { text-decoration: underline; }

@media (max-width: 860px) {
    .pr-body { grid-template-columns: 1fr; }
    .pr-flow { border-right: 0; border-bottom: 1px solid var(--line); min-height: 0; }
}
@media (prefers-reduced-motion: reduce) {
    .pr-gauge__val, .pr-meter__fill, .pr-dot, .pr-progress__bar { transition: none; }
    .pr-note { animation: none; }
}